1、 Soil

Rhododendron likes loose and well drained weak acid soil. It can use rotten leaf soil and peat soil to mix with self-made culture soil. When it is put into the basin, an appropriate amount of bone powder can be added to increase minerals

2、 Fertilization

The absorption capacity of Rhododendron is relatively weak compared with other plants, so the principle of "thin fertilizer and frequent application" should be followed when applying fertilizer. The fertilizer applied in different growth periods is also different. 2-4 months before flowering, liquid fertilizer dominated by phosphorus can promote larger and more colorful flowering; Stop fertilization during flowering, otherwise it will lead to early flower falling; Applying nitrogen fertilizer every 10 days or so after anthesis can promote the growth of new branches. After late July, apply liquid fertilizer dominated by phosphorus every 10-15 days. If it is dormant in winter, fertilization is not required

3、 Watering

Rhododendron requires the soil to be moist but not wet, so watering should not be too frequent, otherwise it will lead to root rot. Spring and autumn are watered once every two or three days. In summer, it can be watered every day. In winter, it is time to reduce the amount of watering. Note that the water cannot be too cold when watering, otherwise it will affect its growth. When watering, the leaves can be cleaned and sprayed one by one

4、 Temperature

The Rhododendron should be moved into the city in early October until the middle and late April of the next year. About 10 ℃ is the most suitable room temperature in winter. Pay attention to ventilation. The sunshine is mild after April, and there will be no problem outdoors at that time